Cultivator



Sept. 16, 1930. c. a. STRANDLUND Original Filed Au 26. 1921 3Sheets-Sheet 1 Sept. 16, 1930. c, STRANDLUND 1,775,835

CULTIVATOR Original Filed Aug. 26. 1921 5 Sheets-Sheet 2 Imfhi r (9%:mm,

Jim;

Sept. 16, 1930.

c. G. STRANDLUND cuL'nmTox Original Filed Aug. 26. 1921 s Sheets-Sheet 3all m 2/4 \\\\\\\\\\\\\\III I \m Patented Sept. 16, 1930 UNITED STATESPATENT OFFICE CARLG. STRANDLUND, OF MOLINE, ILLINOIS, ASSIGNOR TODEEREda COMPANY, OF MOLINE, ILLINOIS, A GORPORATIQN'OF ILLINOISCULTIVATOR Original application filed August 26, 1921, Serial No.495,694. Patent No. 1,654,561, dated anuary 3, 1928.

Divided and this application filed May 23,1927.

This invention relates to cultivators of the type comprising a frameprovided at its ends with .dirigible wheels and having a means wherebythe wheels may be turned laterally in unison for steering purposes, andthe frame maybe moved bodily to the right or left about the pointsofcontact of the wheelswith the ground as pivots. A cultivator of thistype is shown and described in my prior Patent 1,654,561, granted Jan.3, 1928, of which this is a division. The features which constitute thesubject-matter of this application relate to themeans for controllingthe steering position of the wheels, and also have to do with the meansfor raising the cultivator rigs.

Referring to the drawings in which like numerals indicate identicalparts:

Fig. 1 is a top plan view of my cultivator;

Fig. 2 is a side elevation on line 2 2 of Fig. 1 showing the cultivatorrigs in lowered position; 7

Fig. 8 is a similar View to Fig.2 but with the cultivator rigs raised;

Fig. 4 is a rear elevation on line 4-1 of Fig. 1;.

' Fig. 5'is a cross section on. line 55 of Fig.

1; and

Fig. 6 1s a detail view of the arch mount mg corresponding to a sectiontaken on the ,line6-6 of Fig. 1.

In the illustrated construction the frame ofthecultivatoris composed offront and rearchannel bars. 10 and 11, which. are bentand securedtogether at each end by means of plate like members 12 and bolts 13. Themembers 12. depend from the frame bars and are further secured by meansofbrace rods 14 whichareattached at their lower ends to the lowerportion of the members 12 and at their upper ends to the frame bars.Castings 15 are-securedto the members 12 and form a bearing for verticalportion 15 of rearwardlyextending crank axlesl6 which have outturnedportions upon which supporting wheels 17 are journaled.

A-bar18 connects the frame bars 10 and 11 intermediate their length. Asupporting member" 19. ispivoted at one end to the bar 18 at 20and uponits rear portion carries a roller-21 which is supported by and rollsupon Serial No. 193,391.

the channel frame bar 11, as shown in Figure 5.

Seat bars 22 are secured at their forward ends to the member 19 andextend rearwardly in parallel relationship for most of their length, andare secured together by means of a U-shaped brace 23. At their rearwardportions the seat bars 22 are bent toward each other to form a supportfor a seat 24:." A

to the right or left about the points of contact of the wheels 17 withthe ground as pivots.

The direction of movement of the frame depends on the direction the seatbars 22 are swung by means of foot levers hereinafter described.

On each side, parallel with and equidistant from the bar 18, channelbars 28 are secured to the frame bars 10 and 11. Brackets 29 are securedto the channel bars 28 and form transverse horizontal supports forbearings 30, in this instance sections of pipe. The bearings 30 are freeto move longitudinally in the brackets 29, but are held from rotarymovement by means of set screws 31 which extend through the brackets 29and engage a slot 32 in the bearings 30. The bearings 30 receive theupper horizontal portions of side members 33, the upperhorizontalportion of one of the side members having a threaded reducedportion 84 adapted to engage a tapped opening in the horizontal portionof the other member, as shown in Figure 6. It

will be understood each bearing 30' andits side members 33 as anentirety comprise a rig by the threaded portion 34 and the ds-t pendingportions of the members 33 which vabut against the ends of the bearings30, but

ets, 29 and have laterally extending lower portions which formtransverse "horizontal axes 36, upon which-the forward portionsofsubject-matter of my said prior 1,654,561. The rig carrying archesextend downwardly and forwardly from thebrackrigs 35 are journale-d, ina common and well known manner, for independent vertical movement. Therigs 35 carry the usual cultivating devices 37 The rigs and frame arepivotahy connected together at points rear- "'wardlycofthe rig carryingarches by means hereinafter described.

By positioning the depending portions or the rig carrying archesforwardly of the ver-" tical a number of advantages accrue,'namely;

it permits the rigs being positionedwell for- 7 Ward so the operator mayat all times have a better view of'their'operatiomit providesbetter'penetration for-the shovels 37 asthe forward" movement of thecultivatorftends "to force them into the ground; and it pro-* 'vi'd'esmeans for balancing the frame of the cultivator when the shovelsare'raised, for when raised the weight of the rigsvistr'ansferredforwardly thereby balancing the weight of the operator on the seat 24;

Clips 38are secured'to the inner ends of the bearings 30, and'links 39are connected at one end to' the clips '38 and extend toward connectedto, forwardly extendingarn s of be1l-cranks40 mounted on a verticalpivot 41 secured to they supporting member 19.

'Liiik's 42 are connected at'their. forwardends to laterally extendingarms of the bell cranks d 40, and are connected at their rearwardends tothe lower end of a lever 43. The lever 43 is pivoted intermediate itslength ,to one of and dog device adapted to engage one ofa 'seriesofnotches in a sector 43? secured to the seat bar 22. By strokingth'e'lever 43, it is evident that the arches carryingthe rigs 35 will bemoved relatively to the'bracket 29 by reason of the connectionsdescribed, and con- 'sequently the arches and rigs will be broughtcloser together or spread farther apart, de-

pending on whether theoperator strokesthe.

- lever 43rearwardly or forwardly. The cultivating rigs/may be raisedand 44 and 45 are journaled in suitable hearings on the frame bar 11,and have, on their outer f ends, forwardly extending arms 46 which'areconnected by means of links 47 to castings 48 1 lowered eitherindependently or simultaneously in the following manner: Rock shafts 7stated is secured'to the seatbars 22. the center of the cultivator,where they are secured to the outer members 33 of the rig carryingarches. The inner ends of the rock shafts 44 and 45 have upwardlyextending arms which form hand levers 49 and 50. In

suitable hearings on the frame'bar ellabe-v tween andin aline'ment withthe rock shafts 44and 45, is, journaled' a rock shaft 51, on

.to the "frame. Levers 53 and 54 are loosely.

one end of'which is a masterlever 52 provided ,7

with the. usual latch and'dog device adapted 1 7 to engage with notchesin a sector 52* secured one si'de'ofthe master lever 52 and has notcheswith which a latch on the lever'54 engages,

and on the oppositeside of the lever '52 is se-,

'cured a sector 59 having notches with which a latch on the lever 50engages. The end of the rockshaftopposite the lever 52is upturnedand hassecured thereto a sector 60, 1 having" notches with which a latch onlever 53 engages, and asector 61 havingnotches with which. a latchonflever. 49 engages. By

this arrangement of arts it is'apparent that '2 each cultivatingrig'mayfbe'raised or low-- ere'd independently ofxthe others by actual,ing the-,leverto which it is connected,'and that all the rigs mayberaised or lowered 7 simultaneously by operating the master 1e f'ver52.To aid the operator in lifting the rigs 35 a spring 62 is connectedatone end to a casting 63 secured to theshaft 51, and at f r v .theotherend to. an eye-bolt .64securedto a lug 23 on the brace 23,which ashasbeen To provide a horizontal parallel lifting ac- I tion for the rigs35 links 65 are pivotally connected at their lower ends to the rigs 35at points rearwardly of and in horizontal aline-f "are pivotallyconnected at their upperends I I to a frame'bracket 66 atia pointinhorizontal I the seat bars 22 and carries'the usuallatch "allel with andsubstantially the same length as the depending portions of the rigcarrying arches, as the latter are swung forwardly and upwardly the rigs35 will be'raisedin horizontal parallel relationship. 7

The cultivator is guided means of foot levers 67 and 68,-journaledinbearings 69'and' 70 secured to the seatbars 22; The foot-'lever 67' isprovided with an upwardly extending arm 67 at the opposite side of theseat support from that at which said foot lever depends, which arm isconnected by means of a link '2 2 with one of the innerframe brackets66, so that said foot lever 67. isconnectedwith i the frame of thecultivator at the opposite side of the seat support from that at whichthe seat bars 22 will be swung laterally in one.

direction or the other about the pivot 20, and the framewill move bodilyendwise, or transversely of the machine, in the opposite dimean, guidingthe cultivator as an entirety in that direction. For'example when theoperator intends to guide the cultivator to the ri ht of the plant rows,which will be to the le t as viewed in Figure l, the operator pushes hisright foot against the lower end of thefoot lever '67. In so doing, theoperator moves himself and the seat 24 to the right as seeninFigure 1,due to the fact that the upper end of the foot lever 6'? is connected tothe bracket 66 on the frame 11 by the link i 72. When ever pressure isapplied to the lower end of the foot lever 67 the upper end 67 moveslateral-ly'to the right in Figure 1 so as to be directly behind thepoint of connection-of the link 72 with the bracket 66. This also movesthe seat bars 22 in the same direction'with respect to the frame 11about the point 20 thereon, and which through the rods 26. swings eachof the arms 27 and the axles 16 clockwise about their axis in thecastings 15. The wheels being in contact with the ground, and at pointsto the rear of the frame l1,'the latter-therefore moves to the left, asseen in Figure l, carrying with it the rigs 35. It will-be noted that,as clearly shown in Fig. 1, the spring 62 lies in the median line of thecultivator when the seat bars are in their normal position, at whichtime the wheels are also in their normal position. When, however, theseat bars are swung laterally to guide the wheels to one side or theother, and the frame isconsequentlymoved in the direction oppo site tothat in which the seat bars swing, as the rear end of said spring isconnected with the seat bars and the front end thereof is connected withthe frame, whenever the seat bars are swung laterally the spring is putunder greater tension. Said spring, therefore, tends to return the seatsupport to its normal position and to hold it in such position, andconsequently it serves the double purpose of aiding in' lifting the rigsand in maintaining a: the wheels in their normal position.

Draft poles 73 are connected at their rearward portions to the frame.The usual evenconnected with the frame. by-meanstofdraft links 76.

What I claim as my invention and desire to secure-by Letters Patent, is

1. In a cultivator, the combination ofa frame, crank axles havingvertical portions journaled on the frame, wheels mountedon the crankportions of said axles, alaterally swinging seat support pivotallymounted on the frame, means operatedbylateral swing ing of said seatsupport for turningsaid crank axles in unison-to steer said wheels, footlevers pivotally connected with said seatsupport and depending therefromatopposite sides thereof, and connections between said foot leversrespectively and the frame whereby forward movement of one or theother'of said levers will swing the seat support laterally in onedirection and will guide the cultivator in the opposite direction.

2. In a cult1vator, the combination of a frame, crank axles havingvertical portions journaled on the frame, wheels mounted on the crankportions of said axles, a laterally swinging seat support pivotallymounted on the frame, means operated by lateral swinging of said seatsupport for turning said crank axles in unison to steer said wheels, andfoot levers pivotall 1 connected with said sear support and dependingtherefrom atopposite sides thereof, each of said foot levers having anupwardly extending arm connected with the cultivator frame at theopposite side of said seat support, whereby forward move ment of one orthe other of said foot levers will swing the seat support laterally inone direction and will guide the cultivator in the opposite direction.

3. In a cultivator, the combination of a frame, crank axles havingvertical portions journaled on the frame, wheels mounted on the crankportions of said axles, a laterally swinging seat support pivotallymounted on the frame, means operated by lateral swing ing of said seatsupport for turning said crank axles in unison to steer said wheels,foot levers operable to swing said seat support laterally in onedirection or the other,and a spring extending substantiallylongitudinally of the cultivator between said seat support and saidframe and serving to resist lateral movement of said seat support ineither directionfrom its normal position.

4. In a cultivator, the combination of a frame, crank axles havingvertical portions journaled on the frame, wheels mounted on the crankportions of said axles, a laterally swinging seat support pivotallymounted on the frame, means operated by lateral sw ing of said seatsupport for turning crank axles in unison to steer said wheels, 10 Itlevers operable to swing said seat support laterally in'onedirection orthe other, cult vatorrigs connected with said frame to sw nVGI'tlCflllYf'lDGfLHS operable to raise *or lower I saidcultivatrrigs,-and a spring. arranged to assist in raising thecultivator rigs and serving also to resist lateral movement of said seatsupport in either direotionifro n itsnor-g,

mal position, v V t 5.. In. a cultivator, the :COHllJlIlfilllOIl. of, aframe,. crank axles having vertical portions journaled on theframe,.,wheels mounted on the crank portions of said axles, a laterallyswingingseat support, pivotally mounted on the frame, means: operated bylateral swing; 7 "ing'" of said seat support for turning [said crankaxles in unison to move said-frame sist lateral movement of saidfs'eatsupport in either direction from its normal POSltlOIL;

,6.In acultivaton'thecombination of a frame, crank axlesl avingvertiealportions ourna'led on the frame, wheels mounted on the crank portions ofsaid axles, a laterally swinging seat support-pivotally, mounted on theframe, means operated by. lateral swing, in}; of said seat support in?one direction for turningcsaid crank axles fin unison vto steer saidwheels, inthe opposite direction, lever-s fulcrumed on said seat 7support, and conneev.tions between said levers respectivelyand the frameoperablebythe actuation of one or the other of said levers to swing'theseat support laterally in onedirection or theothei'.

7. In a cultivator,-the combination of a frame, crank'axles havingverticalportions jou'rnaled on the frame, wheels mounted on thecrankportionsofsaid axles, a laterally swinging seat. support ,pivotallymounted on the frame, means operated by lateral swinging of saidseatisupport in one direction for turning said crank" axles-in unisonftosteer said wheels in the opposite d rection, and

,means mountedonvand swinging with said seat sup support laterally.

8. In a cult vator, the; eoinbinationof frame, crank axles havingvertical portions journaled on the frame, wheels mounted onf thecrankvportions of said axles a laterally swinging seat supportpivotallymounted on the frame, meansconnected withsaid crank v axlesandwith said seat support-back of the pivot thereof for. turning saidcrank axles in unison bylateralswinging ofsaid seat j support, and meanscarried by andswinging with saidseat support and connected witlrtlie 1frame, and operable to swing said seat support laterally in eitherdirection.

" 9. In a-cultivator, the combination a 1 frame, erank'axles havingvertical: portions journaled nftheframe, wheels mounted on the crank.portions iofi said axles: a laterally support,. means Icarriedp by andswinging .norn al'positionia swinging seat support pivotally mounted on,g the frame, means operated by lateralswing said wheels in the"oppositedireotion, means 'ra'ise orlower said cultivator rigs, and a rectionfrom its normal position. o

port, and operable to swingsaid seat the eran-k portionsf of'sa d'axles-,,-alaterally swinging seat support pivotally mounted on theframe, meansoperate'd by lateral swing ins ofsa t s pp rt in 'd T Qtn orturning said crank axles inunison'to steer said yvheels in the oppositedirection, means lateral movement of said seat support in either:dlrectionefrom; its normal position.

o l and-withsaid seat support backof the pivot thereof for turning saidcrank axles'in; .1 unison by the lateral swinging; of i said seat with'said'seat support and'eonneetedwith: the frame, and operable to swingsaid seat supportylaterally in either direction,- and a a I springserving to resistlaterat movement of sa d se-at'support in eitherdirection from its "f 11. in a cultivator,'the combination of s me;crank axlesvh'aving vertiealiportions. ournaled on theframe-,wheelsmounted on the crank portions ofisaid axles, a laterallying of said seatsupportinone direction for y turning said crank axles inunison to steer mounted on'and:swingingwithsaid seatlsup-' port, andoperableto swing said seat support laterally, cultivator rigs connectedwith the frame to swing vertically, means operable to.

spring arranged to assist in raising 'the eultivator'rigs and servingalso to resistlateral movement of saidseatsupport in either di-J 12: Ina cultivator, the combinationf of a frame, crank axles having verticalportions journal-ed on the frame, wheels mounted out swingingseatsupport pivotally mounted on the frame, means connected with saidcrank axles and with said seat-support back of the pivot thereof-forturning said crank axles 111 unison ,by lateral swinging .of said fseatport laterally in either; direction, cultivator rigs oonneeted with theframe torsw'ing vertically means operable to raise or lower saidcultivator rigs, an dja spring arranged to assist inraisingthecultivator rigs andserv ing also to resist lateral movementof saidseat support in; either direction from its norj a r s en-l ;-1 a when WQm inet Q Pf e o l v 'inounted on and swinging with said seat sup Iport, 'andoperable to swing said SGlGjSljlP-r port;laterally,and aspring serving to resist V 7'5, 1 10;; In a;' cultivator, thecombination of a frame, crank axles having vertical portions journaledon the frame, Wheels mounted on the crank portions of said axles, alaterally swinging seat support pivotally mounted on the frame, meansoperated by lateral swinging of said seat support for turning said crankaxles in unison to steer said wheels, a roller interposed between saidseat support and said frame to reinforce the pivotal mounting of saidseat support on the frame, and a spring serving to resist lateralmovementof said seat support in either direction from its normalposition.

14. In a cultivator, the combination of a frame, crank axles havingVertical portions journaled on the frame, Wheels mounted on I the crankportions of said axles, a laterally swinging seat support,,meanspivotally connecting the front portion of said seat support with saidframe, means operated by lat eral swinging of said seat support forturning said crank axles in unison to steer said wheels, means mountedupon said seat support and actuatable from said seat support forswinging the latter, and a roller carried by said seat support in rearof said pivot means and bearing on said frame for sustaining a portionof the weight imposed on 7 said seat support.

